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EJA115 Low Flow Transmitter
Brand: Yokogawa Electric CorporationThe model EJA115 Low Flow Transmitter is a flowmeter comprised of a differential pressure transmitter with an integral orifice and excellent for very low flow measurement.
It outputs a 4-20 mA DC signal corresponding to the measured flow.
The orifice is available in six types with a bore ranging from 0.508 mm to 6.350 mm. The combination of the bore selection with the differential pressure measurement span variation of the differential pressure transmitter enables a wide range of very small flow measurement.
The model EJA115 also features remote setup and monitoring through communications with the model BT200/100 BRAIN TERMINAL, CENTUM CS/XL system etc.
Features- 5% Flow Span (Accuracy)
- External Zero Adjust
Specifications
Accuracy
- ± 5 % of Span
Alarm
- Down-Scale: -2.5 %, 3.6 mA DC or Less
- Down-Scale: -5 %, 3.2 mA DC or Less
- Up-Scale: 110 %, 21.6 mA DC or more
Ambient Temperature Range
- -30° to 80° C (-22° to 176° F) - with Integral Indicator
- -40° to 85° C (-40° to 185° F) - General-Use Typical
Approvals & Certifications
- CSA Explosion-proof & Intrinsically Safe
- EMC EN 61326-1 Class A, EN 61326-2-3
- FM Explosion-proof & Intrinsically Safe
- IECEx Intrinsically Safe, Typical N & Flameproof Approval
- NAMUR NE43
- PED 97/23/EC
- TIIS Flameproof & Intrinsically Safe
Approvals & Certifications
- Leak Test
- Mill Certificate
- Pressure Test
BSP Connection
- 1/2” BSPT Female
Cable Material
- Polyethylene Insulated PVC Sheathed
Communication
- BRAIN
- FOUNDATION Fieldbus
- HART
- PROFIBUS PA
Connection Material
- JIS SCS14A
Damping Adjustment
- 0.1 to 64 seconds in 9 Increments
Diaphragm Material
- ASTM N10276
- Hastelloy C-276
Differential Pressure
- psi: 0.145 to 1.45 (kPa: 1 to 10, bar: 0.01 to 0.1) - Capsule L
- psi: 0.29 to 14.5 (kPa: 2 to 100, bar: 0.02 to 1) - Capsule M
- psi: 2.901 to 30.46 (kPa: 20 to 210, bar: 0.2 to 2.1) - Capsule H
Display
- LCD Display
Distance
- 2 Kilometers - Communication Distance
Drain, Vent Valves & Plug
- 316 Stainless Steel
Electrical Connectors
- 1/2” NPT Female
- G 1/2” Female
- M20 Female
- PG13.5
Electrical Protection
- Lightning Protection
Enclosure Finish
- Deep Sea Moss Green (Munsell 0.6 GY3.1/2.0)
- Epoxy Resin Coating
- Polyurethan Resin Baked Finish
Enclosure, Body Material
- 316 Stainless Steel
- Cast Aluminum Alloy
- JIS SCS14A
Environmental Protection
- IP67
- NEMA 4X
Fill Material
- Fluorinated Oil
Flange Material
- JIS SCS14A - Cover Flange
- JIS SUS630 - Cover Flange
Flow Rate
- 0.004 to 1.9 gpm (0.016 to 7.2 LPM) to Water - Capsule L
- 0.005 to 6.076 gpm (0.022 to 23 LPM) to Water - Capsule M
- 0.02 to 8.72 gpm (0.07 to 33 LPM) to Water - Capsule H
- 0.44 to 198 Nl/min to Air - Capsule L
- 0.63 to 635 NL/min to Air - for Capsule M
- 2 to 910 Nl/min to Air - Capsule H
Gasket Material
- PTFE (Teflon) - Process Connector Gasket
- Teflon-Coated JIS SUS316L - Capsule Gasket
Humidity
- 5 to 100 % Relative Humidity at 40° C (104° F) - Ambient Humidity
Input Impedance
- 10 kiloohms or more at 2.4 kHz
Length
- 1.33” (34 mm) - Standard Vent Length
- 4.6” (119 mm) - Total Vent Length
Load
- 0.22 µF or Less - Load Capacitance
- 3.3 MH or Less - Load Inductance
Materials of Construction
- JIS 304 Stainless Steel - Tag Plate, Mounting Bracket
- JIS 316 Stainless Steel - Tag Plate, Mounting Bracket
- JIS SECC - Mounting Bracket
Mounting
- 2” (50.8 mm) Pipe
Mounting Position
- Horizontal Impulse Piping Typical
- Vertical Impulse Piping Typical
Mounting Position Effect
- 390 Pa (40 mmH₂O)/90°
NACE & NIST
- NACE
NPT Connection
- 1/2” NPT Female
Nut & Bolt Material
- JIS SCM435
- JIS SUS630
O-Ring Material
- Fluororubber
Operating Temperature
- -20° to 80° C (-4° to 176° F)
Orifice Material
- JIS SUS316
Orifice Size
- 0.02” to 0.25” (0.508 to 6.350 mm)
Output
- 3.8-20.5 mA - Output Signal Limits
- 4-20 mA DC (2-Wire)
Power Supply Effect
- ± 0.005 % Per Volt (21.6-32 Vdc, 350 ohms)
Pressure Range
- Inches WC: 0 to 830
- kPa: 0 to 210
- mbar: 0 to 2,100
- mmWC: 0 to 21,000
- psi: 0 to 30.46
Pressure Type
- Absolute
- Differential
Process Temperature
- -40° to 120° C (-40° to 248° F)
Response Time
- 0.5 second, Max.
Screw Material
- 316 Stainless Steel
Supply Voltage
- 10.5-28 Vdc for TIIS Intrinsically Safe Typical
- 10.5-30 Vdc for Intrinsically Safe, Typical N, Non-Incendive, or Non-Sparking Typical
- 10.5-32 Vdc for Lightning Protector
- 10.5-42 Vdc for General Use & Flameproof Typical
- 16.4-42 Vdc
Update Time
- 0.125 second
Wetted Materials
- 316L Stainless Steel - Capsule
- JIS SUSF316L - Capsule, Manifold
Zero Offset
- 0.01 % of Span - Continuously Adjustable Resolution
